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Inventories (Details) (USD $)
Mar. 29, 2013
Jun. 29, 2012
Inventory, net:    
Finished goods $ 15,701,000 $ 47,728,000
Work in process 17,776,000 22,666,000
Raw materials 42,861,000 52,997,000
Total inventories 76,338,000 123,391,000
Finished goods inventory at customer sites undergoing installation testing $ 6,000,000 $ 25,700,000